二级分行每半年要对房地产中介机构担保的信贷业务质量进行监测分析，按监测结果进行分类，其中关注类的不良率是指（）

A、1％～2％

B、1％～3％

C、2％～3％

D、2％～4％

On a vessel making a voyage more than 48 hours long，regulations require that（）.

A.a lifeboat drill be held within 12 hours prior to departure

B.fire pumps be tested by starting within 12 hours prior to departure

C.the emergency generator and lighting system be tested by starting and operating within 12 hours prior to departure

D.the entire steering gear be tested within 12 hours prior to departure